Can Bearded Dragons Eat Collard Greens? Yes, a Top Staple

Why collards make a good base green

VCA's recommended list for bearded dragons includes collard greens with turnip greens, mustard greens, dandelion greens, escarole, watercress, bok choy, cilantro, parsley and others. VCA then singles out spinach, Swiss chard and beet greens for oxalates and cabbage, kale and mustard greens for goitrogens. Collards are on neither caution list.

That makes them a practical foundation. VCA says leafy greens should make up 80 to 90 percent of the plant portion, and a green you can use most days without a specific drawback is the easiest way to meet that.

Calcium, the reason greens matter so much

The Merck Veterinary Manual identifies metabolic bone disease as the most common bone disease in reptile practice. It follows from diets low in calcium relative to phosphorus, a lack of vitamin D3, or inadequate UVB lighting and heat, and it mostly affects fast-growing herbivorous and insectivorous lizards.

Dark leafy greens are the plant side of the defense. The rest is VCA's routine: a phosphorus-free calcium powder lightly dusted on food daily, a calcium powder with vitamin D3 two to three times a week, and UV light so a dragon can use vitamin D3 to absorb calcium.

Calcium is only absorbed well when a bearded dragon gets UVB light and a warm basking area, so a properly sized bearded dragon tank matters as much as the salad; the rest of the setup is in our reptile supplies.

How to prepare collard greens

Rinse each leaf on both sides. Fold the leaf in half along the thick center rib and cut the rib away; it is tough and fibrous. Stack the leaf halves, roll them up and slice them into thin ribbons, then chop across the ribbons for small pieces.

Use them raw, as VCA prefers, and mix in another green or two. Do not offer southern-style cooked collards, which are usually simmered with pork, salt, onion and seasoning. Plain fresh leaves are all a dragon needs.

Diet is only half of reptile care: the heat and UVB setup in a well-planned reptile terrarium decides how well a dragon digests what it eats, and our bearded dragon enclosure guide covers the sizes.

How much and how often

For an adult dragon, collard greens can make up a large part of the daily salad, mixed with smaller amounts of other greens and vegetables. Adults are usually fed every 24 to 72 hours, depending on appetite, according to VCA.

For juveniles, which eat mostly insects and are fed once or twice a day, offer a small pile of very finely chopped collards daily so they get used to eating greens. Many will pick at them before they eat much.

Rotating collards with other greens

Even with a reliable staple, variety helps. Pair collards with turnip greens, dandelion greens, escarole, watercress or bok choy on different days, and add herbs such as cilantro or parsley for aroma. Kale, cabbage and mustard greens can join the rotation in moderation.

For color and texture, VCA's recommended vegetables include bell peppers and green beans, and its smaller-amounts list includes squash, carrots and cucumber. A spoonful of one of these on top of a collard base makes a complete plant portion.

Signs to watch and when to see a vet

Merck lists the signs of metabolic bone disease as poor appetite, lethargy, abnormal walking, a swollen or distorted jaw or limbs, fractures, cloacal prolapse, muscle twitching and tetany. Any of these needs a reptile veterinarian soon.

Also see a vet if your dragon refuses greens for weeks, stops eating for several days outside of brumation, or loses weight. Bring a list of what you feed and the supplements you use.

This page is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your pet.